I'm thinking of purchasing MC 20, I'm pretty satisfied with 19 but the WDM driver seems like a great idea. I currently use VBCable + Loopback in my dedicated HT room to play games and take advantage of my bi amping / room correction. However, even on the 2ms delay in device settings theres still too much of a delay, a gun fired is perceivably off. Its not a big issue, but now I've been using this rig to do some mixing in protools and I can't have a delay like that since things are being synced to video. Does the new WDM driver have this delay or any at all?